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add bvprint

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rsc 2004-12-28 19:18:33 +00:00
parent 8b45564f0f
commit 727facb605
1 changed files with 39 additions and 0 deletions
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39
src/libbio/bvprint.c Normal file
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@ -0,0 +1,39 @@
#include "lib9.h"
#include <bio.h>
static int
fmtBflush(Fmt *f)
{
Biobuf *bp;
bp = f->farg;
bp->ocount = (char*)f->to - (char*)f->stop;
if(Bflush(bp) < 0)
return 0;
f->stop = bp->ebuf;
f->to = (char*)f->stop + bp->ocount;
f->start = f->to;
return 1;
}
int
Bvprint(Biobuf *bp, char *fmt, va_list arg)
{
int n;
Fmt f;
f.runes = 0;
f.stop = bp->ebuf;
f.start = (char*)f.stop + bp->ocount;
f.to = f.start;
f.flush = fmtBflush;
f.farg = bp;
f.nfmt = 0;
f.args = arg;
n = dofmt(&f, fmt);
bp->ocount = (char*)f.to - (char*)f.stop;
return n;
}